I had a wonderful stay at Frank's place, which was even better than the photos suggested. Not only was it spacious and comfortable, it was sparkling clean and very well-maintained. Communicating with Frank was easy and he gave very clear instructions for self check-in and check-out. Keeping the flat's location in mind, he's also put together a little binder of local tips (and house rules). Wi-Fi was great, kitchenware was provided, and I liked that the flat had both A/C and a ceiling fan – options are always good! There's a washing and drying area at the rooftop on the 6th floor. There's no lift in the building, which was fine by me.
Location-wise, there's a BTS station about 10-12 minutes' walk from Frank's place, and the Sathorn pier (with free ferries to Iconsiam and Asiatique) is about 12-15 minutes' walk away. There's a convenience store across the street and a 7-11 round the corner, plus lots of local eateries nearby.
Will definitely recommend Frank's place and stay here again myself!